tsimplify funding_locked expose lnworker in peer update channel_db when channels are open - electrum - Electrum Bitcoin wallet
(HTM) git clone https://git.parazyd.org/electrum
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---
(DIR) commit 2ae4b1862d3f0332230f915ea995f76b37ea6664
(DIR) parent 21c883bd0b1acf7a8c06543c9fb3aaf95fbe68ed
(HTM) Author: ThomasV <thomasv@electrum.org>
Date: Tue, 5 Jun 2018 13:57:04 +0200
simplify funding_locked
expose lnworker in peer
update channel_db when channels are open
Diffstat:
M lib/lnbase.py | 100 ++++++++++++++-----------------
M lib/lnworker.py | 40 +++++++++++--------------------
2 files changed, 59 insertions(+), 81 deletions(-)
---
(DIR) diff --git a/lib/lnbase.py b/lib/lnbase.py
t@@ -572,29 +572,29 @@ def is_synced(network):
class Peer(PrintError):
- def __init__(self, host, port, pubkey, privkey, network, channel_db, path_finder, channel_state, channels, invoices, request_initial_sync=False):
+ def __init__(self, lnworker, host, port, pubkey, request_initial_sync=False):
self.channel_update_event = asyncio.Event()
self.host = host
self.port = port
- self.privkey = privkey
self.pubkey = pubkey
- self.network = network
- self.channel_db = channel_db
- self.path_finder = path_finder
+ self.lnworker = lnworker
+ self.privkey = lnworker.privkey
+ self.network = lnworker.network
+ self.channel_db = lnworker.channel_db
+ self.path_finder = lnworker.path_finder
+ self.channel_state = lnworker.channel_state
self.read_buffer = b''
self.ping_time = 0
self.initialized = asyncio.Future()
self.channel_accepted = defaultdict(asyncio.Queue)
self.funding_signed = defaultdict(asyncio.Queue)
- self.remote_funding_locked = defaultdict(asyncio.Queue)
self.revoke_and_ack = defaultdict(asyncio.Queue)
self.update_fulfill_htlc = defaultdict(asyncio.Queue)
self.commitment_signed = defaultdict(asyncio.Queue)
self.localfeatures = (0x08 if request_initial_sync else 0)
- self.channel_state = channel_state
self.nodes = {}
- self.channels = channels
- self.invoices = invoices
+ self.channels = lnworker.channels
+ self.invoices = lnworker.invoices
def diagnostic_name(self):
return self.host
t@@ -713,11 +713,6 @@ class Peer(PrintError):
if channel_id not in self.funding_signed: raise Exception("Got unknown funding_signed")
self.funding_signed[channel_id].put_nowait(payload)
- def on_funding_locked(self, payload):
- channel_id = payload['channel_id']
- if channel_id not in self.remote_funding_locked: print("Got unknown funding_locked", payload)
- self.remote_funding_locked[channel_id].put_nowait(payload)
-
def on_node_announcement(self, payload):
pubkey = payload['node_id']
signature = payload['signature']
t@@ -957,22 +952,43 @@ class Peer(PrintError):
raise Exception("expected local ctn {}, got {}".format(chan.local_state.ctn, local_ctn))
if channel_reestablish_msg["my_current_per_commitment_point"] != chan.remote_state.last_per_commitment_point:
raise Exception("Remote PCP mismatch")
- self.channel_state[chan_id] = 'OPEN' if chan.local_state.funding_locked_received else 'OPENING'
+ self.channel_state[chan_id] = 'OPENING' #if chan.local_state.funding_locked_received else 'OPENING'
self.network.trigger_callback('channel', chan)
- async def funding_locked(self, chan):
+ def funding_locked(self, chan):
channel_id = chan.channel_id
- short_channel_id = chan.short_channel_id
per_commitment_secret_index = 2**48 - 2
per_commitment_point_second = secret_to_pubkey(int.from_bytes(
get_per_commitment_secret_from_seed(chan.local_state.per_commitment_secret_seed, per_commitment_secret_index), 'big'))
self.send_message(gen_msg("funding_locked", channel_id=channel_id, next_per_commitment_point=per_commitment_point_second))
- # wait until we receive funding_locked
- remote_funding_locked_msg = await self.remote_funding_locked[channel_id].get()
- self.print_error('Done waiting for remote_funding_locked', remote_funding_locked_msg)
- new_remote_state = chan.remote_state._replace(next_per_commitment_point=remote_funding_locked_msg["next_per_commitment_point"])
+ if chan.local_state.funding_locked_received:
+ self.mark_open(chan)
+
+ def on_funding_locked(self, payload):
+ channel_id = payload['channel_id']
+ chan = self.channels.get(channel_id)
+ if not chan:
+ raise Exception("Got unknown funding_locked", channel_id)
+ short_channel_id = chan.short_channel_id
+ new_remote_state = chan.remote_state._replace(next_per_commitment_point=payload["next_per_commitment_point"])
new_local_state = chan.local_state._replace(funding_locked_received = True)
- return chan._replace(short_channel_id=short_channel_id, remote_state=new_remote_state, local_state=new_local_state)
+ chan = chan._replace(short_channel_id=short_channel_id, remote_state=new_remote_state, local_state=new_local_state)
+ self.lnworker.save_channel(chan)
+ if chan.short_channel_id:
+ self.mark_open(chan)
+
+ def mark_open(self, chan):
+ if self.channel_state[chan.channel_id] == "OPEN":
+ return
+ assert chan.local_state.funding_locked_received
+ self.channel_state[chan.channel_id] = "OPEN"
+ self.network.trigger_callback('channel', chan)
+ # add channel to database
+ sorted_keys = list(sorted([self.pubkey, self.lnworker.pubkey]))
+ self.channel_db.on_channel_announcement({"short_channel_id": chan.short_channel_id, "node_id_1": sorted_keys[0], "node_id_2": sorted_keys[1]})
+ self.channel_db.on_channel_update({"short_channel_id": chan.short_channel_id, 'flags': b'\x01', 'cltv_expiry_delta': b'\x90', 'htlc_minimum_msat': b'\x03\xe8', 'fee_base_msat': b'\x03\xe8', 'fee_proportional_millionths': b'\x01'})
+ self.channel_db.on_channel_update({"short_channel_id": chan.short_channel_id, 'flags': b'\x00', 'cltv_expiry_delta': b'\x90', 'htlc_minimum_msat': b'\x03\xe8', 'fee_base_msat': b'\x03\xe8', 'fee_proportional_millionths': b'\x01'})
+ self.print_error("CHANNEL OPENING COMPLETED")
def on_update_fail_htlc(self, payload):
print("UPDATE_FAIL_HTLC", decode_onion_error(payload["reason"], self.node_keys, self.secret_key))
t@@ -993,37 +1009,16 @@ class Peer(PrintError):
)
return chan, last_secret, this_point, next_point
- async def pay(self, wallet, chan, amount_msat, payment_hash, pubkey_in_invoice, min_final_cltv_expiry):
+ @aiosafe
+ async def pay(self, path, chan, amount_msat, payment_hash, pubkey_in_invoice, min_final_cltv_expiry):
assert self.channel_state[chan.channel_id] == "OPEN"
+ assert amount_msat > 0, "amount_msat is not greater zero"
+ height = self.network.get_local_height()
their_revstore = chan.remote_state.revocation_store
- while not is_synced(wallet.network):
- await asyncio.sleep(1)
- print("sleeping more")
-
if chan.channel_id in self.commitment_signed:
print("too many commitments signed")
del self.commitment_signed[chan.channel_id]
-
- height = wallet.get_local_height()
- assert amount_msat > 0, "amount_msat is not greater zero"
-
- our_pubkey = ecc.ECPrivkey(self.privkey).get_public_key_bytes()
- sorted_keys = list(sorted([self.pubkey, our_pubkey]))
- self.channel_db.on_channel_announcement({"short_channel_id": chan.short_channel_id, "node_id_1": sorted_keys[0], "node_id_2": sorted_keys[1]})
- self.channel_db.on_channel_update({"short_channel_id": chan.short_channel_id, 'flags': b'\x01', 'cltv_expiry_delta': b'\x90', 'htlc_minimum_msat': b'\x03\xe8', 'fee_base_msat': b'\x03\xe8', 'fee_proportional_millionths': b'\x01'})
- self.channel_db.on_channel_update({"short_channel_id": chan.short_channel_id, 'flags': b'\x00', 'cltv_expiry_delta': b'\x90', 'htlc_minimum_msat': b'\x03\xe8', 'fee_base_msat': b'\x03\xe8', 'fee_proportional_millionths': b'\x01'})
-
- print("our short chan id", chan.short_channel_id)
- while True:
- path = self.path_finder.find_path_for_payment(our_pubkey, pubkey_in_invoice, amount_msat)
- if path is not None:
- break
- print("waiting for path")
- await self.channel_update_event.wait()
- self.channel_update_event.clear()
-
- route = self.path_finder.create_route_from_path(path, our_pubkey)
-
+ route = self.path_finder.create_route_from_path(path, self.lnworker.pubkey)
hops_data = []
sum_of_deltas = sum(route_edge.channel_policy.cltv_expiry_delta for route_edge in route[1:])
total_fee = 0
t@@ -1035,17 +1030,11 @@ class Peer(PrintError):
associated_data = payment_hash
self.secret_key = os.urandom(32)
self.node_keys = [x.node_id for x in route]
-
hops_data += [OnionHopsDataSingle(OnionPerHop(b"\x00"*8, amount_msat.to_bytes(8, "big"), (final_cltv_expiry_without_deltas).to_bytes(4, "big")))]
-
onion = new_onion_packet(self.node_keys, self.secret_key, hops_data, associated_data)
-
msat_local = chan.local_state.amount_msat - (amount_msat + total_fee)
-
msat_remote = chan.remote_state.amount_msat + (amount_msat + total_fee)
-
amount_msat += total_fee
-
self.send_message(gen_msg("update_add_htlc", channel_id=chan.channel_id, id=chan.local_state.next_htlc_id, cltv_expiry=final_cltv_expiry_with_deltas, amount_msat=amount_msat, payment_hash=payment_hash, onion_routing_packet=onion.to_bytes()))
their_local_htlc_pubkey = derive_pubkey(chan.remote_config.htlc_basepoint.pubkey, chan.remote_state.next_per_commitment_point)
t@@ -1105,7 +1094,7 @@ class Peer(PrintError):
revoke_and_ack_msg = await self.revoke_and_ack[chan.channel_id].get()
# TODO check revoke_and_ack results
- return chan._replace(
+ chan = chan._replace(
local_state=chan.local_state._replace(
amount_msat=msat_local,
next_htlc_id=chan.local_state.next_htlc_id + 1
t@@ -1118,6 +1107,7 @@ class Peer(PrintError):
amount_msat=msat_remote
)
)
+ self.lnworker.save_channel(chan)
@aiosafe
async def receive_commitment_revoke_ack(self, htlc, decoded, payment_preimage):
(DIR) diff --git a/lib/lnworker.py b/lib/lnworker.py
t@@ -22,7 +22,7 @@ from .wallet import Wallet
from .lnbase import Peer, Outpoint, ChannelConfig, LocalState, RemoteState, Keypair, OnlyPubkeyKeypair, OpenChannel, ChannelConstraints, RevocationStore, aiosafe, calc_short_channel_id, privkey_to_pubkey
from .lightning_payencode.lnaddr import lnencode, LnAddr, lndecode
from . import lnrouter
-
+from .ecc import ECPrivkey
is_key = lambda k: k.endswith("_basepoint") or k.endswith("_key")
t@@ -96,6 +96,7 @@ class LNWorker(PrintError):
wallet.storage.put('lightning_privkey', pk)
wallet.storage.write()
self.privkey = bfh(pk)
+ self.pubkey = ECPrivkey(self.privkey).get_public_key_bytes()
self.config = network.config
self.peers = {}
# view of the network
t@@ -119,7 +120,7 @@ class LNWorker(PrintError):
def add_peer(self, host, port, pubkey):
node_id = bfh(pubkey)
channels = self.channels_for_peer(node_id)
- peer = Peer(host, int(port), node_id, self.privkey, self.network, self.channel_db, self.path_finder, self.channel_state, channels, self.invoices, request_initial_sync=True)
+ peer = Peer(self, host, int(port), node_id, request_initial_sync=False)
self.network.futures.append(asyncio.run_coroutine_threadsafe(peer.main_loop(), asyncio.get_event_loop()))
self.peers[node_id] = peer
self.lock = threading.Lock()
t@@ -164,19 +165,7 @@ class LNWorker(PrintError):
self.print_error("network update but funding tx is still not at sufficient depth")
continue
peer = self.peers[chan.node_id]
- asyncio.run_coroutine_threadsafe(self.wait_funding_locked_and_mark_open(peer, chan), asyncio.get_event_loop())
-
- # aiosafe because we don't wait for result
- @aiosafe
- async def wait_funding_locked_and_mark_open(self, peer, chan):
- await peer.initialized
- if self.channel_state[chan.channel_id] == "OPEN":
- return
- if not chan.local_state.funding_locked_received:
- chan = await peer.funding_locked(chan)
- self.save_channel(chan)
- self.print_error("CHANNEL OPENING COMPLETED")
- self.channel_state[chan.channel_id] = "OPEN"
+ peer.funding_locked(chan)
# not aiosafe because we call .result() which will propagate an exception
async def _open_channel_coroutine(self, node_id, amount_sat, push_sat, password):
t@@ -194,19 +183,18 @@ class LNWorker(PrintError):
return asyncio.run_coroutine_threadsafe(coro, self.network.asyncio_loop).result()
def pay(self, invoice):
- coro = self._pay_coroutine(invoice)
- return asyncio.run_coroutine_threadsafe(coro, self.network.asyncio_loop)
-
- @aiosafe
- async def _pay_coroutine(self, invoice):
- openchannel = next(iter(self.channels.values()))
addr = lndecode(invoice, expected_hrp=constants.net.SEGWIT_HRP)
payment_hash = addr.paymenthash
- pubkey = addr.pubkey.serialize()
- msat_amt = int(addr.amount * COIN * 1000)
- peer = self.peers[openchannel.node_id]
- openchannel = await peer.pay(self.wallet, openchannel, msat_amt, payment_hash, pubkey, addr.min_final_cltv_expiry)
- self.save_channel(openchannel)
+ invoice_pubkey = addr.pubkey.serialize()
+ amount_msat = int(addr.amount * COIN * 1000)
+ path = self.path_finder.find_path_for_payment(self.pubkey, invoice_pubkey, amount_msat)
+ node_id, short_channel_id = path[0]
+ peer = self.peers[node_id]
+ for chan in self.channels.values():
+ if chan.short_channel_id == short_channel_id:
+ break
+ coro = peer.pay(path, chan, amount_msat, payment_hash, invoice_pubkey, addr.min_final_cltv_expiry)
+ asyncio.run_coroutine_threadsafe(coro, self.network.asyncio_loop)
def add_invoice(self, amount_sat, message='one cup of coffee'):
coro = self._add_invoice_coroutine(amount_sat, message)